A continuation on the fundamental group of a surface, we prove that the multiplication of equivalence classes or types of loops from a base point does indeed form a group in the algebraic sense. We discuss the fundamental group of the torus and the projective plane.
This is part of a beginner's course on Algebraic Topology, given by N J Wildberger of UNSW.
Congratulations, you're a great professor, you are helping me a lot, thank you very much
a hello from Brazil - Fortaleza
blackbelttt 6 months ago